JP2018193827A - Construction machine - Google Patents

Abstract

To provide a construction machine which safely and simply performs a fuel supply work using a fuel hose.SOLUTION: A hydraulic shovel 1 is provided with: an engine; a fuel tank 11 storing a fuel consumed by the engine; a fuel pump 14 feeding the fuel into the fuel tank 11; an upper rotary body 4 having a machine room 8 storing the engine, the fuel tank 11 and the fuel pump 14; and an opening/closing type opening/closing cover 10 covering the machine room 8. The opening/closing cover 10 is configured to be opened to the outside of the machine room 8 in a plan view around a substantially vertical rotary shaft 10a, and a fuel hose storage part 17 storing a fuel hose 16 connected to the fuel pump 14 is provided on the inner surface of the opening/closing cover 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a construction machine having a fuel pump that feeds fuel into a fuel tank, and more particularly to a fuel hose housing structure for a fuel pump.

  2. Description of the Related Art Conventionally, as in Europe, for example, a construction machine body having a fuel tank so that fuel can be supplied from a drum can to the construction machine fuel tank is known.

  For example, the construction machine of Patent Document 1 includes a self-propelled vehicle body equipped with an engine for driving a hydraulic pump, a hydraulic oil tank provided in the vehicle body for storing hydraulic oil to be supplied to the hydraulic pump, A fuel tank provided in the vehicle body adjacent to the hydraulic oil tank for storing fuel to be supplied to the engine, and a fuel tank provided in the vicinity of the hydraulic oil tank and the fuel tank for supplying fuel to the fuel tank. A fuel pump that injects fuel, a long suction hose that is provided with a proximal end connected to the suction port of the fuel pump and a distal end that serves as a suction port, and sucks fuel in the container toward the fuel pump, a hydraulic oil tank, It is comprised with the tank cover provided so that the upper side of the fuel tank could be opened and closed.

JP 2013-79547 A

  However, in a construction machine like patent document 1, the tank cover in which the suction port accommodation case was provided in the inner surface is rotated centering on the horizontal rotation support member below. For this reason, there is a problem that if fuel leaks from the vicinity of the suction port, it flows into the inside of the machine room through the tank cover.

  Further, since it is difficult to secure a space for fixing the fuel hose, the fuel hose is provided at a relatively high position. For this reason, it is troublesome to refuel between the crawlers of the excavator and the drum can.

  This invention is made | formed in view of this point, The place made into the objective is to enable it to perform the fuel supply operation | work using a fuel hose safely and easily.

  In order to achieve the above object, in the present invention, the fuel hose accommodating portion is provided on the inner surface of the cover that opens outwardly about a substantially vertical axis.

Specifically, in the first invention,
Engine,
A fuel tank for storing fuel consumed by the engine;
A fuel pump for feeding fuel into the fuel tank;
A construction machine body having a machine room for housing the engine, the fuel tank, and the fuel pump;
In a construction machine comprising an openable open / close cover that covers the machine room,
The opening / closing cover is configured to open to the outside of the machine room in a plan view around a substantially vertical rotation axis,
A fuel hose accommodating portion for accommodating a fuel hose connected to the fuel pump is provided on the inner surface of the opening / closing cover.

  According to the above configuration, since the fuel hose accommodating portion is provided on the back surface of the opening / closing cover that opens to the outside of the machine room with the substantially vertical rotation shaft as the center, when the opening / closing cover is opened, it stands on the ground or the like. The fuel hose can be taken out and the end of the fuel hose can be inserted into a drum can or the like on the ground or the like for refueling work. Further, even if fuel spills from the tip of the fuel hose, the fuel hose can be detached and attached outside the machine room, so that the machine room is not soiled. The “substantially vertical rotation axis” does not have to be a completely vertical rotation axis, but may mean a slightly inclined rotation axis.

In the second invention, in the first invention,
The fuel pump is provided at the bottom of the machine room,
The fuel hose housing portion is provided below the inner surface of the opening / closing cover.

  According to said structure, since the fuel hose accommodating part is provided in the inner surface lower side of the opening / closing cover, it is not necessary to lift the fuel hose high and to perform detachment | desorption work, work is easy and it is hard to spill a fuel.

In the third invention, in the first or second invention,
Provided on the inner surface of the opening / closing cover is a tip accommodating portion for accommodating the tip of the fuel hose,
The tip accommodating portion is provided with a discharge portion capable of discharging the fuel accumulated inside.

  According to the above configuration, the tip of the fuel hose can be easily inserted and removed, and even if fuel spills from the tip, the machine room is not soiled. Moreover, even if fuel accumulates in the tip accommodating portion, it can be discharged without contaminating the ground or the like.

In a fourth invention, in any one of the first to third inventions,
The construction machine body includes a cab and is supported by a slewing bearing so that the slewing is possible.
The machine room is provided on the side of the cab,
The fuel pump is provided at the bottom of the machine room,
The opening / closing cover is provided on a side surface of the machine room.

  According to the above configuration, the fuel supply operation can be easily performed by taking out the fuel hose from the fuel hose accommodating portion provided on the inner surface of the opening / closing cover opened at an appropriate height while standing on the ground.

In a fifth invention, in any one of the first to fourth inventions,
Hydraulic excavator,
The fuel pump is provided at the bottom of the machine room surrounded by the fuel tank, hydraulic oil tank, and control valve.

  According to said structure, a fuel pump and a fuel hose accommodating part can be provided using a narrow space.

  As described above, according to the present invention, the opening / closing cover is provided so as to open to the outside of the machine room centering on a substantially vertical rotation shaft in plan view, and the inner surface of the opening / closing cover is connected to the fuel pump. Since the fuel hose accommodating portion for accommodating the fuel hose is provided, the fuel supply operation using the fuel hose can be performed safely and easily.

It is a side view which expands and shows the opening-and-closing cover and its periphery of an open state. 1 is a side view showing a hydraulic excavator according to an embodiment of the present invention. It is a top view which expands and shows the opening-and-closing cover and its periphery of an open state. It is the IV section enlarged side view of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 2 shows a hydraulic excavator 1 as a construction machine according to an embodiment of the present invention. The hydraulic excavator 1 includes, for example, a lower traveling body 2 having a crawler capable of traveling, a slewing bearing 3, and the slewing bearing 3. And an upper turning body 4 as a construction machine main body supported so as to be turnable.

  The upper swing body 4 includes a swing frame 5 provided with the swing bearing 3, a cab 6, and an attachment 7 that is swingably supported by a boom foot (not shown) on the front side of the swing frame 5. . A machine room 8 is provided on the side of the cab 6, that is, on the right side of the attachment 7, and a counterweight 9 is provided behind the machine room 8. That is, the machine room 8 is provided in a relatively narrow area on the front side of the counterweight 9 on the right side of the upper swing body 4.

  As shown in FIG. 1, an engine (not shown) is provided on the rear side of the machine room 8, and an opening / closing cover 10 is provided on the front side of the engine so as to open and close the machine room 8. ing. A fuel tank 11 for storing fuel consumed by the engine is provided on the front side of the opening / closing cover 10. A hydraulic oil tank 12 that stores hydraulic oil for driving hydraulic equipment such as the lower traveling body 2 and the attachment 7 is provided on the rear side of the opening / closing cover 10. A main control valve 13 for controlling the flow of hydraulic oil is provided between the hydraulic oil tank 12 and the fuel tank 11. A fuel pump 14 for feeding fuel to the fuel tank 11 is provided at the bottom of the machine chamber 8 on the opening / closing cover 10 side (right side) of the main control valve 13. For example, the fuel pump 14 can be rotated by electric power of a battery built in the excavator 1. Between the fuel pump 14 and the fuel tank 11, a tank side hose 15 having both ends connected to the discharge port 14 a of the fuel pump 14 and the fuel tank 11 is provided.

  As shown in an enlarged view in FIG. 4, the opening / closing cover 10 is provided on the side surface of the machine room 8 so as to open to the outside of the machine room 8 centering on a substantially vertical rotation shaft 10 a in plan view. The opening / closing cover 10 is provided with a fuel hose accommodating portion 17 for accommodating the fuel hose 16 connected to the suction port 14 b of the fuel pump 14 on the inner surface of the opening / closing cover 10.

  Provided on the inner surface of the opening / closing cover 10 is a tip accommodating portion 18 for accommodating a filter portion 16 a provided at the tip of the fuel hose 16. The tip accommodating portion 18 is, for example, a rectangular parallelepiped having an upper opening, and is provided with a discharge pipe 19 as a discharge portion capable of discharging the fuel accumulated inside. For example, a cock or the like may be provided in the discharge pipe 19 so that the fuel can be discharged after placing a bucket container below.

  As described above, since the fuel hose accommodating portion 17 is provided on the back surface of the opening / closing cover 10 that opens outward about the substantially vertical rotation shaft 10a, when the opening / closing cover 10 is opened as shown in FIG. In addition, the fuel hose 16 can be taken out while standing on the ground and the fuel can be refilled by inserting the filter portion 16a at the tip into a drum can or the like on the ground. In addition, after the replenishment operation is completed, the operator can store the filter portion 16a at the tip in the tip storage portion 18 at an appropriate height while standing on the ground.

  Even if fuel spills from the tip of the fuel hose 16, as shown in FIG. 3, the fuel hose 16 can be detached from the outside of the machine room 8, so that the inside of the machine room 8 is not contaminated.

  In particular, by providing the fuel hose accommodating portion 17 below the inner surface of the opening / closing cover 10, there is no need to lift and remove the fuel hose 16 so that the operation is easy and the fuel can be further prevented from spilling.

  In the present embodiment, the tip of the fuel hose 16 can be easily taken in and out while standing on the ground or the like in the tip accommodating portion 18 provided on the lower inner surface of the opening / closing cover 10, and fuel is accumulated in the tip accommodating portion 18. However, since it suffices to discharge from the discharge pipe 19 into the bucket or the like, it is possible to discharge without polluting the ground or the like.

  Further, since the fuel pump 14 is provided at the bottom of the machine room 8 surrounded by the fuel tank 11, the hydraulic oil tank, and the control valve, the fuel pump 14 and the fuel hose accommodating portion 17 are provided using a narrow space. Can do.

  Therefore, according to the hydraulic excavator 1 according to the present embodiment, the fuel supply operation can be performed while standing on the ground or the like, and the fuel does not spill into the machine room 8, so that the fuel supply workability using the fuel hose 16 is extremely high. It can be done safely and efficiently.

(Other embodiments)
The present invention may be configured as follows with respect to the above embodiment.

  That is, in the above embodiment, the construction machine is the hydraulic excavator 1, but the present invention may be applied to construction machines other than the hydraulic excavator, and is particularly small and medium-sized construction machine that can be maintained from the ground or the like. Application to is effective.

  In the above-described embodiment, the fuel hose accommodating portion 17 is provided on the inner surface of the opening / closing cover 10 on the right side of the machine room 8 on the side of the cab 6, but is not limited to this position. In short, the fuel hose accommodating portion 17 may be provided on the inner surface of the opening / closing cover having a space capable of accommodating the fuel tank 11 connected to the fuel pump 14, particularly within the reach from the ground or the like.

  In the above embodiment, the excavator 1 has a crawler as the lower traveling body 2, but it may be a wheel or may be fixed to a swivel provided on a deck or the like. In short, it is preferable to provide the fuel hose accommodating portion 17 on the inner surface of the open / close cover that opens outwardly around a substantially vertical rotation shaft at a position where the fuel hose 16 can be attached and detached while standing on the ground, deck or the like.

  In addition, the above embodiment is an essentially preferable illustration, Comprising: It does not intend restrict | limiting the range of this invention, its application thing, or a use.

1 Excavator (construction machine)
2 Crawler
3 Slewing bearing
4 Upper swing body (construction machine body)
5 Rotating frame
6 cab
7 Attachment
8 Machine room
9 Counterweight
10 Open / close cover
10a Rotating shaft
11 Fuel tank
12 Hydraulic oil tank
13 Main control valve
14 Fuel pump
14a Discharge port
14b Inlet
15 Tank side hose
16 Fuel hose
16a filter section
17 Fuel hose housing
18 Tip receiving part
19 Discharge pipe

Claims (5)

Engine,
A fuel tank for storing fuel consumed by the engine;
A fuel pump for feeding fuel into the fuel tank;
A construction machine body having a machine room for housing the engine, the fuel tank, and the fuel pump;
In a construction machine comprising an openable open / close cover that covers the machine room,
The opening / closing cover is configured to open to the outside of the machine room in a plan view around a substantially vertical rotation axis,
A construction machine characterized in that a fuel hose accommodating portion for accommodating a fuel hose connected to the fuel pump is provided on an inner surface of the opening / closing cover. The construction machine according to claim 1,
The fuel pump is provided at the bottom of the machine room,
The construction machine according to claim 1, wherein the fuel hose housing portion is provided below the inner surface of the opening / closing cover. In the construction machine according to claim 1 or 2,
Provided on the inner surface of the opening / closing cover is a tip accommodating portion for accommodating the tip of the fuel hose,
The construction machine according to claim 1, wherein the tip accommodating portion is provided with a discharge portion capable of discharging fuel accumulated therein. The construction machine according to any one of claims 1 to 3,
The construction machine body includes a cab and is supported by a slewing bearing so that the slewing is possible.
The machine room is provided on the side of the cab,
The fuel pump is provided at the bottom of the machine room,
The construction machine, wherein the opening / closing cover is provided on a side surface of the machine room. The construction machine according to any one of claims 1 to 4,
Hydraulic excavator,
The construction machine according to claim 1, wherein the fuel pump is provided at the bottom of the machine room surrounded by the fuel tank, the hydraulic oil tank, and the control valve.

Images